2023 NEC now requires surge protection on many services. The specifics are not provided in 230. I find more often we are installing big residential services. Might have many new loads we wouldn't see 20 years ago. Commonly, we install a meter backboard where meter socket & disconnects are mounted. more than one feeder then supplies the house. It'd be convenient to place surge protection at the meter. This means it would not be connected through a circuit breaker. Would this be code compliant?
Surge protection
- Thread starter Willie B
- Start date
Strathead
Senior Member
- Location
- Ocala, Florida, USA
- Occupation
- Electrician/Estimator/Project Manager/Superintendent
Type 1 surge can be installed without a circuit breaker. And that is the specifics in article 230.
- Location
- Bremerton, Washington
But comply with 110.14
Some poco offer an SPD that goes between the meter and meter base
Some poco offer an SPD that goes between the meter and meter base
Speedskater
Senior Member
- Location
- Cleveland, Ohio
- Occupation
- retired broadcast, audio and industrial R&D engineering
Is there a summary of the 2023 surge protection requirements?
- Location
- Bremerton, Washington
Mike Holt just did a video on SPDS.
He may also have PDF, both would be on his website
He may also have PDF, both would be on his website
- Location
- Bremerton, Washington
Start with article 100 definitions
Then Article 280 or 285, on SPDS. I seem to recall the 2023 NEC renumbered the SPD article
Other sections that that apply are general in nature, like 110.14, that are just part of knowing the code
Then Article 280 or 285, on SPDS. I seem to recall the 2023 NEC renumbered the SPD article
Other sections that that apply are general in nature, like 110.14, that are just part of knowing the code
shortcircuit2
Senior Member
- Location
- South of Bawstin
2023 Code requires SPD's at the residential service per 230.67 and at residential feeder fed equipment per 215.18 and 225.42